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[[File:Howdy_doody_test_pattern.jpg|thumb|300px|Howdy Doody test pattern on Doc's TV set]]
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[[File:Howdy_doody_test_pattern.jpg|thumb|250px|Howdy Doody test pattern on Doc's TV set.]]
   
 
A '''test pattern''' or '''test card''' was a screen represented by a card that was filmed and broadcast in between programs, usually during off-air times at night. It was used to calibrate and align the camera. One particular test pattern featured an Indian head.
 
A '''test pattern''' or '''test card''' was a screen represented by a card that was filmed and broadcast in between programs, usually during off-air times at night. It was used to calibrate and align the camera. One particular test pattern featured an Indian head.

Revision as of 23:34, 15 December 2010

Howdy Doody test pattern on Doc's TV set.

A test pattern or test card was a screen represented by a card that was filmed and broadcast in between programs, usually during off-air times at night. It was used to calibrate and align the camera. One particular test pattern featured an Indian head.

On the morning of November 13, 1955, a test pattern displayed on the screen of Emmett Brown's television set before switching over to Howdy Doody.

Behind the scenes

In one episode of Back to the Future: The Animated Series, Doc's head replaces that of the Indian.

Appearances

See also

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